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Lapatulllka [165]
3 years ago
5

To measure the satisfaction of their customers Ali Baba restaurant sends out 1000 surveys to their customers. Out of the 823 sur

veys that were returned, 635 people said they were satisfied with the restaurant. Calculate LaTeX: \hat{p}p ^ for those that were satisfied?
Mathematics
1 answer:
Dafna1 [17]3 years ago
3 0

Answer:

Th proportion of satisfied customers is

\hat{p}=0.77

Step-by-step explanation:

Although 1,000 surveys were send, we may consider our sample is only made by the 823 surveys returned.

Out of the returned surveys (n=823), 635 people said they were satisfied with the restaurant.

Then, the p-hat (proportion of satisfied people) of this sample is calculated as:

\hat{p}=x/N=635/823=0.77

If we consider as the sample size all the surveys sent, and assuming the surveys not returned belong to non-satisfied customers, the proportion of satisfied clients is:

\hat{p}=x/N=635/1,000=0.64

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920 square feet

Step-by-step explanation:

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3 years ago
The quadratic function g(x) = ax^2 + bx + c has the complex roots (-5+9i) and (-5-9i). (you may assume that a = -1) what is the
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  • b = -10, c = -106

Step-by-step explanation:

<h3>Given</h3>

<u>Quadratic function </u>

  • g(x) = ax^2 + bx + c

with the roots:

  • (-5+9i) and (-5-9i)
<h3>To find </h3>
  • b and c if a = -1
<h3>Solution</h3>

<u>As we know the sum of the roots is -b/a and the product of the roots is c/a. Substituting values and solving for b and c:</u>

  • (-5 + 9i) + (-5 - 9i) = -b/-1
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And

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4 0
3 years ago
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'x' would be the number of hours. "At most" means less than or equal to. So, the value of x would have to be less than or equal to 30.

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So, Gina would have a maximum of 9 hours to swim in the pool.

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3 0
3 years ago
Shaquil needs to borrow $400. The loan company charges him $80 in fees for the loan. Shaquil calculates that the annual percenta
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Answer:

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